Poseidon

Poseidon was born to the Titan Cronus and his sister-wife Rhea, the earth goddess, in the dark age before the Olympian gods rose to power. Cronus, terrified by a prophecy that one of his children would overthrow him, swallowed each infant as Rhea gave birth, imprisoning them in his belly. Rhea, grieving, hid her sixth child, Zeus, on the island of Crete, and when the boy grew to manhood, he returned and forced his father to vomit up his siblings, Poseidon among them. The brothers and sisters, now fully grown, waged war against Cronus and the older generation of Titans in a conflict called the Titanomachy, the war between the old Titans and the young Olympian gods, which lasted ten years and shook the cosmos to its foundations. When the Titans fell, the three brothers drew lots to divide the universe. Zeus took the sky and the throne of Olympus. Hades took the underworld and the realm of the dead. Poseidon took the sea, all the waters of the earth, and the power to shake the land itself. He built his palace beneath the waves at Aegae, a place of coral and gold where the light of the surface filtered down in shifting patterns, and there he ruled with his wife Amphitrite, one of the Nereids, the fifty daughters of Nereus, the Old Man of the Sea.

Poseidon's most famous rivalry was with Athena, the goddess of wisdom, for the patronage of the city of Athens. When the city was founded by the autochthonous king Cecrops, half-man and half-serpent, the two gods competed to become its protector. Poseidon struck the rock of the Acropolis, the citadel that would become the heart of Athens, with his trident, and a salt spring gushed forth, symbolising the sea power he offered. Athena planted an olive tree, symbolising peace, prosperity, and the sustenance of civilisation. The people of Athens, led by their king, chose Athena, and Poseidon was enraged. He sent a great flood to drown the plains of Attica, the region surrounding Athens, and demanded that the women of Athens be forbidden to vote in future contests. Some traditions say that the men of Athens were divided, and that the women, who outnumbered them, cast the deciding vote for Athena, and that Poseidon's punishment was to make the land barren of water. To this day, the salt spring remains on the Acropolis, a reminder of the god's fury and the city's choice.

Poseidon's wrath was legendary and his vengeance patient. When the hero Odysseus, the cunning king of Ithaca who spent ten years wandering the Mediterranean after the Trojan War, blinded the Cyclops Polyphemus, Poseidon's one-eyed giant son, the god pursued him across the sea with storms and shipwrecks for a decade. Polyphemus had trapped Odysseus and his men in his cave on a remote island, devouring two of them for dinner each night, until Odysseus tricked the giant with wine and blinded him with a sharpened stake. As Odysseus sailed away, his pride overcame him, and he shouted his true name, allowing Polyphemus to pray to his father. Poseidon heard the prayer from his palace beneath the waves and answered it with relentless fury. He smashed Odysseus's ships, drowned his crew, and cast the hero alone onto foreign shores, ensuring that no vessel would carry him home until every god had forgotten the offence, which only happened when Odysseus had suffered enough to earn the pity of Athena, the goddess of wisdom, who had always favoured him. Poseidon also cursed the Phaeacians, the blessed people who had finally sailed Odysseus to Ithaca, turning their ship to stone as it entered harbour and surrounding their island with mountains to prevent them from ever helping travellers again.

Poseidon was also a god of creation and fertility, particularly associated with horses and bulls. In some myths, he created the horse by striking a rock with his trident, and the first horse sprang forth, foam dripping from its mane. In others, he invented the horse in a contest with Athena, shaping it from the sea foam as she shaped the olive tree. He was worshipped at the Isthmian Games, one of the four great athletic festivals of Greece, held near Corinth on the narrow isthmus that connected the Peloponnese to mainland Greece, where horse races and chariot contests honoured his power. He was also the god of earthquakes, the earth-shaker who could split the ground with his trident and swallow cities whole. The Greeks, who lived in a seismically active region, feared his anger more than almost any other god's, for a storm at sea could be survived but an earthquake could not. Temples to Poseidon stood on headlands and capes, where sailors could see them and pray before voyages, and sacrifices of bulls and horses were offered to him to ensure safe passage and calm waters.

Poseidon's children were as varied as the sea itself, ranging from heroes to monsters. He fathered Theseus, the greatest hero of Athens, with Aethra, a princess of Troezen, a city in the northeastern Peloponnese. Theseus would grow up to slay the Minotaur, the half-man half-bull monster that lived in the Labyrinth of Crete, and to unify the scattered villages of Attica into the city-state of Athens. But Poseidon also fathered Polyphemus, the man-eating Cyclops, and the giant Antaeus, who drew his strength from contact with the earth and was slain by Heracles, the hero forced to complete twelve impossible labours. He was the father of the winged horse Pegasus, born from the blood of the Gorgon Medusa when Perseus severed her head, for Medusa had lain with Poseidon in Athena's temple, a desecration that led to her transformation into a monster. He fathered the sea-monster Cetus, sent to devour Andromeda, and the giant Orion, the hunter who was placed in the stars. And in Plato's later myth, he was the divine founder of Atlantis, the island kingdom beyond the Pillars of Hercules that was destroyed by his own earthquakes when its people grew corrupt, sinking beneath the waves in a single day and night of misfortune. Poseidon was not a god of simple good or evil but of the sea's own nature, beautiful and terrible, life-giving and deadly, calm one moment and murderous the next.